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Recycling
The processing of used materials or waste into new products to prevent the waste of potentially useful waste material, reduce consumption of fresh material, as well as reduce energy consumption and environmental pollution.
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Shannon Walker
Astronomy; Astronaut
Shannon Walker (born 4 June 1965 in Houston, Texas) is an American scientist and a NASA astronaut, whose first space mission was Expedition 24 on the International Space Station ...
Joseph A. Walker
Astronomy; Astronaut
Joseph Albert "Joe" Walker (20 February 1921 – 8 June 1966) was an American NASA test pilot, and member of the U.S. Air Force Man In Space Soonest program. In 1963, he made two ...
David M. Walker
Astronomy; Astronaut
David Mathieson Walker (May 20, 1944 - April 23, 2001), was a United States Navy officer and a NASA astronaut. He flew aboard four Space Shuttle missions in the 1980s and 1990s.
Charles D. Walker
Astronomy; Astronaut
Charles David "Charlie" Walker (born August 29, 1948) is an American engineer who flew on three Space Shuttle missions in 1984 and 1985 as a Payload Specialist for the McDonnell ...
Rex J. Walheim
Astronomy; Astronaut
Rex Joseph Walheim (born October 10, 1962) is a United States Air Force officer and a NASA astronaut. He has flown three space shuttle missions, STS-110, STS-122, and STS-135. Rex ...
Koichi Wakata
Astronomy; Astronaut
Koichi Wakata (born 1 August 1963) is a Japanese engineer and a JAXA astronaut. Wakata is a veteran of four NASA Space Shuttle missions and a long-duration stay on the ...
